Individuals extrinsically motivated by financial success tend to have higher vitality than individuals who are more intrinsically motivated

You get a paper back and briefly feel angry at the low grade you received, but this feeling is upsetting because you like the professor so much. You quickly turn your attention to other matters. Later that day you pick a fight with your roommate because of

a. projection.
b. sublimation.
c. displacement.
d. rationalization.

The ______ variable is what is manipulated in an experiment in order to determine if it has an effect on another variable.

a.) dependent b.) confound c.) random d.) independent